Home / 123,731.24-170,749.52-67,142.60

Finding the Fourth Proportional to 123,731.24, 170,749.52 and 67,142.60

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Solution

The fourth proportional to 123,731.24, 170,749.52 and 67,142.60 is: 92,657.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,731.24 : 170,749.52 = 67,142.60 : x
  2. Step 2: Convert to fraction form
    123,731.24/170,749.52 = 67,142.60/x
  3. Step 3: Cross multiply
    123,731.24x = 170,749.52 × 67,142.60
  4. Step 4: Simplify right side
    123,731.24x = 11,464,566,721.55
  5. Step 5: Solve for x
    x = 11,464,566,721.55/123,731.24
  6. Step 6: Final answer
    x = 92,657.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.